Yv aeeen t



(No Model.)

W. T. KELLOGG.

SASH CORD GUIDE.

No. 371,947. Patented vOct. 25, 1887.

WITNESSES: 5a. A mm 1J3 W UNiTsn STATns ATENT Trren.

W'ARREN T. KELLOGG, OF LANSINGBURG, NEW YORK.

SASH-CORD GUIDE.

SPECIFICATION forming part of Letters Patent No. 371,947, dated October25., 1887.

Application filed OctoherlS, 1886. Serial No. 217,403.

(No model.)

To all whom it may concern.-

Be it known that I, WARREN T. KELLOGG, of Lansingburg, Rensselaercounty, State of New York, have invented a new and useful Improvement inSaslrPulleys, of which the following is a specification.

My invention relates to sash-pulleys, and more particularly to thatclass of them which are made with a socket having ribbed exterior facesthat adapt it to be driven into an opening produced in the wood by aseries of 0011- centrically bored auger holes; and my improvementconsists (as will be more fully described hereinafter in connection withits illustrations) in forming the exteriorly-convex ribs of the socketexterior with wedgeform blades, one of said blades being arranged uponeach of said ribs, and all of them being adapted to enter the interiorface of the opening made in the wood when the socket is driven into thelatter.

When a series of concentrically bored an ger-holes are made to producean opening in the wood to receive the socket, the holes are notalways ofthe same size, as angers nominally of the same size vary in the size ofthe holes bored by them, and the socket is liable to become loose in theopening from continued use. To remedy this difficulty I arrangewedge-form blades upon the exterior convex surface of the socket-ribs,which penetrate the wood when the socket is driven in, and thus preventthe loosening of the latter.-

Accompanying this specification, to form a part of it, there is a sheetof drawings containing four figures illustrating myinvention, with thesame designation of parts by letter reference used in all of them.

Of these illustrations, Figurel shows a perspective of my improved sash-pulley and socket. Fig. 2 shows a top view of the same. Fig. 3 showsthe socket and pulley inserted in the wood, and Fig. at illustrates acrossscction taken on the line at m of Fig. 3.

The several partsof the mechanism thus.

illustrated are designated by letter reference, and the formation of theparts is described as follows:

The letter S designates the pulley-socket; P, the pulley proper; S itspintle-shaft, and Rthe casing or shell, made up of segments of circlesforming the sides and ends of the casing. The letters I) designateblades having a wedge form in their transverse measurement, each one ofwhich blades is arranged on the outer face of one of the segments B.These blades start flush with the face of the casing, and, as they areextended downwardly centrally on the outer face of the segments,taper insize until they reach a terminal point.

The letterNVindicates the wood, having an opening, 0, made therein by aseries of conccntrically-bored auger-holes to receive the socket S,whichis driven therein. When the socket is thus driven into the wood, thesegments R enter the concavities 0, made in the side of the opening,while the blades 1) are forced into the wood, so as to hold the socketfirmly in place. By making the blades b to start flush with the face ofthe casing they not only hold the casing in place, but they compress thewood between their faces and the intersections or bases of the segmentsof the casing and make a better and closer fit between the casing andthe walls of the mortise in which it is driven. If desired, holes may bemade in the ends of socket and nails driven through the holes 0 and intothe wood. The pulley 1? thus illustrated is arranged within the socket Supon the pintle or shaft S, with the latter passed through thesocket-sides and exteriorly headed therein at h. As thus made thesocket, when driven into the opening made in the wood, will be firmlyheld in place bythe blade I) at the sides and ends.

In a known prior construction of sash-pulley casing triangular bladesstarting below the face of the casing and extending inward have beenused on the rounded ends of the casing to hold it in the mortise. Myimprovements, as specified, consist in making the tapering blades on thesides and ends of the casing and forming them to start flush with theface of the casing, which result in holding the casing square and firmat all parts and ingiving the contacting edges of the mortise and easinga close and sightly fit.

Having thus described myinvent-ion, whatI claim, and desire to secure byLetters Patent, 1s

The sash-pulley case herein described, consisting of a hollow shell madeup of two or more segments of circles, 1%, formed on their outersurfaces with tapering wedge-shaped blades 7), arranged on the middle ofeach segment, and starting flush with the face of the outer face of thecasingand tapering inward to a point, substantially as described, andfor the purpose stated.

\VARREN T. KELLOGG.

Witnesses:

CHARLES S. BRINTNAYLL, W. E. HAGAN.

